Until now, there has been no reports on sucrose
isomerase activity from K. oxytoca. In complete
genome sequence of K. oxytoca KCTC 1686
(Accession NC_016612) and K. oxytoca E718
(Accession NC_018106), there is no coding sequences
annotated as sucrose isomerase (date 15 November
2012). But, Prima (2010) noted that K. oxytoca
showed a yellow spot on the aniline diphenylamine
assay. The yellow color indicated the presence of
isomaltulose as the conversion result of sucrose by
using enzymatic reaction [7]. This could be the first K.
oxytoca strain to be reported to have sucrose isomerase
activity.